using System;

public class Program

{

    public static void Main()

    {

        var yesterday = DateTime.Today.AddDays(-1);

        var today = DateTime.Today; 

        var yesterdayDate = DateTime.Today.Date.AddDays(-1);

        var todayDate = DateTime.Today.Date;

        Console.WriteLine("Yesterday: " + yesterday.ToString());

        Console.WriteLine("Today: " + today.ToString());

        Console.WriteLine("Yesterday Date: " + yesterdayDate.ToString());

        Console.WriteLine("Today Date: " + todayDate.ToString());

    }

}